Radio / Amplifier
The crossfire is fitted with a Becker radio, based on the Becker DTM High Speed. The speakers on the non-Base models are powered by an additional Infinity Amplifier.
Radio
The radio itself seems to be based on the Becker Monza, and has all 3 connectors (A, B, C), although connector C is not used. Another spot for a MOST/D2B (Mercedes) connection can be found, but no fiber optics are installed (sometimes).
Some models do seem to include a MOST/D2B connection, as shown below.
The NAV model has an additional C/C button, that is used for the CD Changer, a function that was never shipped with the crossfire. You can find documentation about the CD changer and installation here : https://www.crossfireforum.org/forum/audio-video-electronics/10953-cd-changer-nav-receivers.html .
However, there are other variants that have a DTM button instead.
Part numbers
The Becker "ZH 29" type might refer to the Chrysler naming of the Coupe model, ZH29.
| Mercedes P/N | Notes |
|---|---|
| A 193 820 00 86 | (From SN 35002636)
BE 6806, Inverted screen, MOST cap, "Becker", DoM 19/03 (From SN 35006768) BE 6806, Inverted screen, MOST cap, "Becker", DoM 27/03 (From SN 35018394) BE 6806, Correct screen, MOST cap, "Becker" |
| A 193 820 03 86 | (From SN 45002935)
BE 6811, NAV option with C/C button, MOST/D2B capped off (metal plate), "Harman/Becker", No black spot on the centered tab, DoM 22/04 |
| A 193 820 04 86 | (From SN 45065224)
BE 6806, no NAV, MOST/D2B, "Harman/Becker" |
| A 193 820 06 86 | Late(st?) model, pulled from VIN 63677, no navigation, MOST/D2B connector. |
Amplifier
Wiring
| 1 Blue
Left Door + |
2 Blue / Brown
Left Door - |
3 Blue / Brown
Left Rear/Sub - |
- | - | 4 Brown
Ground |
5 Blue / Dark Green
Enable signal to Amplifier |
| 6 Yellow / Violet
Right Door - |
7 Yellow
Right Door + |
8 Blue
Left Rear/Sub + |
9 Yellow / Violet
Right Rear/Sub - |
10 Yellow
Right Rear/Sub + |
11 Brown
Ground |
- |
| 1 Red / Yellow
Fused B(+) |
2 Red / Yellow
Power Top status signal (Roadster only) |
3 Dark Green / White
Wheel Speed sensor output |
4 Black / Red
Left Rear Speaker Ground |
- | - | 5 Blue / Red
Amplified Right Rear Speaker + |
6 Pink
Amplified Left Rear Speaker + |
7 Black / Pink
Amplified Right Door Speaker + |
8 Black / Blue
Amplified Left Door Speaker + |
| 9 Red / Yellow
Fused B(+) |
10 - | 11 - | 12 Blue
Left Rear Speaker Supply Voltage
|
13 Red / Yellow
Right Rear Speaker Ground |
14 Violet
Right Rear Speaker Supply Voltage |
15 Black / Yellow
Amplified Right Rear Speaker - |
16 Dark Green
Amplified Left Rear Speaker - |
17 Brown / Yellow
Amplified Right Door Speaker - |
18 Brown / Dark Green
Amplified Left Door Speaker - |
4-channel configuration
As shown above, the amplifier does have 4 channels. However, the B connector on the Becker radio only wires the Front channels.
It is possible to pull 4 new wires for the rear speakers to the headunit, by cutting the following wires on the Power Amplifier A connector: 10 (RR+, yellow) 9 (RR-, yellow/violet) 8 (RL+, blue) 3 (RL-, blue/brown). Then, wire these to the radio on either RCA jacks or into the Radio B connector using "ISO radio connector pins".