Unscrew and remove fastening
screws close to the roof console
 Figure 11 -arrows-.

Figure 11

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Installation and Conversion Instructions
1.10.2

2

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9

Carefully pull the headliner  Figure
12 -1- down  Figure 12 -arrow-.

Install GPS antenna.

Figure 12
2.1

Attach angled antenna connector  Figure
13 -1- to the GPS antenna  Figure 13
-2- until the antenna connector engages
securely.

Figure 13
2.2

3

Insert GPS antenna  Figure 14 -1- into the
mounting  Figure 14 -arrow a- and clip it in
 Figure 14 -arrows b-.

Route GPS antenna line as follows:
Front roof trim panel → along wire harness for sun
visor → A-pillar → along wire harness for dashboard
(glove compartment) → PCM installation slot

Figure 14

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Installation and Conversion Instructions

Information
Make sure that the roof cover does not buckle.
3.1

Carefully pull down the headliner and route
antenna line  Figure 15 -1- along the
standard wire harness for the sun visor and
A-pillar.

Figure 15
If there is no standard wire harness, secure
the antenna line  Figure 16 -1- to the roof
using a tie-wrap and punched-hole clip 
Figure 16 -2-.

Figure 16
3.2

Route GPS antenna line  Figure 17 -1along the wire harness for the dashboard
(glove compartment).

Figure 17

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Installation and Conversion Instructions
3.3

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Route GPS antenna line  Figure 18 -1- to
the PCM central connector.

Figure 18
The GPS antenna line  Figure 19 -1- must
protrude approx. 7 cm beyond the PCM
central connector  Figure 19 -2-.
X

– 7 cm

Figure 19

4

3.4

Clip three clip-on tie-wraps  Figure 20 -2into the A-pillar.

3.5

Pull GPS antenna line  Figure 20 -1- back
and fold it to form a loop close to the A-pillar.
Secure GPS antenna line with the two upper
tie-wraps.

Only for vehicles with CDR 31:
Convert audio interface.

Figure 20

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Installation and Conversion Instructions

4.1

Route USB line  Figure 21 -1- along the
standard AUX line  Figure 21 -2- and secure
it with a tie-wrap.

4.2

Convert adapter for audio interface.

Figure 21
4.2.1

Release adapter close to the
catches  Figure 22 -1- and
remove adapter.

Figure 22
4.2.2

5

Clip adapter  Figure 23 -1- into
audio interface  Figure 23 -2-.

Only for vehicles with CDR 31:
Install antenna control unit.

Figure 23

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Installation and Conversion Instructions
5.1

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Fit fastening part  Figure 24 -1- on short
bar of the antenna control unit  Figure 24
-2-.

Figure 24
5.2

Convert antenna lines (antenna control unit to
antenna amplifier).

Figure 25
5.2.1

Release secondary lock  Figure
26 -1- on both sides of the antenna
connector  Figure 26 -2- and
push it up.

Figure 26

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5.2.2

Installation and Conversion Instructions
Lift up the locking mechanism 
Figure 27 -1- and carefully pull
the antenna line (thinner line) out
of chamber 2  Figure 27 -arrow-.

Figure 27
5.2.3

Insert the antenna line you pulled
out into the grey antenna connector
and press down the locking
mechanism  Figure 28 -1-.

Figure 28
5.2.4

Lift up the locking mechanism 
Figure 29 -1- and carefully pull the
antenna line out of chamber 1 
Figure 29 -arrow-.

Figure 29

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Installation and Conversion Instructions
5.2.5

Cayman (981)
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9

Insert the antenna line you
pulled out into the white antenna
connector  Figure 30 -1- and
press down the locking mechanism.

Figure 30
5.3

Connect antenna lines (according to colour
coding) and power supply line to the antenna
control unit.
1
2
3
4
5
6
7

5.4

– Antenna lines (antenna control unit to
antenna amplifier)
– Antenna line (PCM to antenna control
unit)
– Power supply line
– 3-pin connector
– Antenna connector, curry
– Antenna connector, white
– Antenna connector, grey

Disconnect battery ground strap. 
Workshop Manual '2X00IN Work instructions
after disconnecting the battery'
Figure 31

WARNING
Risk of short circuit and fire
•

due to work on the vehicle electrical system.



When working on the electrical system, the battery must always be disconnected and covered.



Always route the electrical wires without tension and so that no chafing occurs and secure to
existing wires/components with tie-wraps/electrical tape.
5.5

Loosen right fuse box holder.
5.5.1

Disconnect plug connections on loudspeaker amplifier.  Workshop Manual
'914419 Removing and installing additional amplifier for loudspeaker'

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5.5.2

Installation and Conversion Instructions
Disconnect plug connections for
door connection point  Figure 32
-1- and plug connections for wire
harness for dashboard  Figure 32
-2-.

Figure 32
Release plug connection  Figure
33 -arrow a- and pull off connector
 Figure 33 -arrow C-.
Release plug connection holder 
Figure 33 -arrow A- and pull it out
of the fuse box holder  Figure 33
-arrow B-.

Figure 33
5.5.3

Unscrew and remove fastening nut

 Figure 34 -1-.
Remove fuse box holder  Figure
34 -arrow- and set it aside.

Figure 34
NOTICE
Incorrect line routing
•

Risk of damage to lines and hoses

•

Malfunction and fault memory entry on control unit

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Installation and Conversion Instructions

Cayman (981)
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9



Avoid small bending radii when routing lines.



File down edges and burrs in the routing area or mask them with adhesive tape.



Maintain a sufficient distance from components exposed to high temperatures while driving.
5.6

Install antenna control unit.
5.6.1

Pull fixing clip  Figure 36 -arrow- for the standard wire harness off the threaded
bolts.

5.6.2

Position antenna control unit 
Figure 35 -1- at the bottom of
the A-pillar (threaded bolts) and fit
fastening part  Figure 35 -2-.

Figure 35
Fit fixing clip  Figure 36 -arrowfor the standard wire harness on the
threaded bolts.
5.7

5.8

Secure the fuse box holder.
5.7.1

Guide in the fuse box holder.

5.7.2

Tighten fastening nut. Tightening
torque 9.7 Nm (7.5 ftlb.)

Route antenna lines and power supply line.
Figure 36

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5.8.1

Installation and Conversion Instructions
Release the fuse box  Figure
37 -arrows- and pull it forward 
Figure 37 -arrow a- to remove it.

Figure 37
5.8.2

Route antenna line (antenna control
unit to PCM) and power supply wire
harness (antenna control unit) 
Figure 38 -1- to the PCM installation
slot.
Antenna control unit → fuse box →
wire harness for dashboard (glove
compartment) → PCM installation
slot

Figure 38
Route antenna line/power supply
wire harness  Figure 39 -1- along
wire harness for dashboard (glove
compartment).

Figure 39

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Installation and Conversion Instructions

Cayman (981)
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9

Route antenna line and power
supply wire harness to the PCM
central connector.
1
2

– Antenna line (antenna
control unit to PCM)
– Power supply line (antenna
control unit)

Figure 40
5.8.3

Pull standard antenna lines off the
antenna amplifier.
1
2

– FM2 antenna line (gold)
– AM/FM1 antenna line
(silver)

Figure 41
5.8.4

Route antenna lines  Figure 42
-1- (antenna control unit to antenna
amplifier).
Antenna control unit → A-pillar →
antenna amplifier

Figure 42

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Installation and Conversion Instructions

24/13

Plug in electric plug connection until
it engages securely.
2
3

– FM2 connector (gold)
– AM/FM1 connector (silver)

Wind wrapping tape around the
standard antenna lines  Figure
43 -1- and secure with a tie-wrap.

Figure 43
5.8.5