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

MOST/D2B yellow connection cap

The radio itself seems to be based on the Becker Monza, and has all 3 "ISO" 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, but these might be unpopulated.

Base model cars (for example the SE and Base/Blackline) have radios without the Infinity mark above the display, and are fitted with black knobs.

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.

DTM button on the far left (BE 6802)

A Becker radio without NAV option (BE 6806)

Radio with NAV and C/C button. Note the silver center piece.

Base model radio, without NAV, black knobs, no Infinity marking.

The backside of the Becker radio

Radio with inverted display, seen on very early Chrysler Crossfires. (BE 6806, made in 2003)

Connectors

The OEM wiring harness of the Crossfire consists of:

• 2 connectors from ISO-10487 ("A" and "B")
  • Connector "B" only has wires for the "front" speakers. You cannot use the OEM harness for controlling the rear speakers, which has to be modified manually through the 4-Channel upgrade explained below.
• 1 FM antenna connector, ISO for NAV version, and probably DIN or FAKRA for non-NAV version.
• [only NAV] 1 male SMA antenna connector for the active GPS

FM Antenna

The roadster is fitted with an external antenna, similar to Volkswagen. Google P/N 1J0035849F. There is also a shorter version of the antenna, which you can find by googling "9 inch antenna volkswagen 2004".

The coupe has the antenna integrated in the rear window heating array, and is powered by the "Antenna ON" signal of the headunit (connector A pin 5). This antenna module is a Chrysler part. Note: if you have issues with your amplifier and/or FM radio reception, there is a chance that the cabling in the sleeve going into the rear hatch is being cut through the metal, shorting the ON signal to the chassis (common issue in cars).

GPS Antenna

This antenna is located [figure out where, probably in front of car], and is a Wisi AG 13, an active GPS antenna with a male SMA connector. There is a thread on the Crossfire Forum that explains a lot.

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 ISO FM antenna
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

"Power Amplifier A" TE Connectivity Multilock .070 176116-6

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	-

"Power Amplifier B" TE Connectivity Multilock .070 176118-6

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".