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Chrysler Crossfire
Radio replacement

This is one information page of my collection of what I have repaired on my Crossfire.

You should not do any repair on your car if you don't have enough experience and knowledge! You use this information at your own risk! Don't blame me if something goes wrong.


If you have a Mercedes SLK R170 with a 320 engine it's almost exact the same.

You have to work with the electric parts when removing the Radio and its booster. Disconnect the battery, the negative terminal ! When disconnecting the battery the alarm and radio will be reset, be sure to have any codes that's needed!

Chrysler Crossfire, 2005, Radio

1, Investigate the booster installation:


My car is now 17 years old and its original radio is still installed. It has no USB or Bluetooth, something I want to have.

Original radio and booster:

The radio is an Infinity (manufactured by Harman International group) with CD player and GPS, its built in power amplifiers are not used. For more information: Infinity Manual, page 112

The Booster is an Infinity with OEM number 1938200489 (manufactured by Harman International group), it have a 4x50 Watt amp. The low bass speakers dual coil's 4 wires are connected directly to it. No documents has been found yet.

There are one speaker in each door and behind the seats are two sub woofers, each sub woofer has a dual coil. At the Crossfire forum there are a lot of discussion about the radio system: Crossfire forum.

New radio:

I have already bought a new radio, a simple one with 4x63 Watt amplifier, USB and Bluetooth. In the beginning I still use the original speakers.

Investigating the original booster installation:

I don't want to cut any cables of the original installation. I start to investigate how the power amplifier to the original radio is installed.

Chrysler Crossfire: Radio replacement

The booster is installed at the passenger side in front of the floor. It's behind the carpet. Above is the cover panel for the coupe air filter. If this is removed first it's easier to take away the carpet.

You didn't forget to disconnect the battery ?

Chrysler Crossfire: Radio replacement

A thick plastic shield protect the booster and other electronic stuff that is mounted here.

Chrysler Crossfire: Radio replacement

Three nuts hold the metal plate in place. They have the size of 10 mm.

Chrysler Crossfire: Radio replacement

The left nut at the floor.

Chrysler Crossfire: Radio replacement

The right nut at the floor. I'm happy to see that there is no rust on the floor.

Chrysler Crossfire: Radio replacement

Gentle pull out the metal plate, it's narrow space here. Don't tear off any cables. The black tube coming down in the background looks to be an air outlet to cool the booster.

Chrysler Crossfire: Radio replacement

The shiny metal box is the booster, behind is something connected to the airbag system, don't touch it !

Chrysler Crossfire: Radio replacement

The left connector has the power cable and other control wires. To the right is the connector with all the wires to the 4 speakers together 6 coils, 12 wires.

Chrysler Crossfire: Radio replacement

To loose the connectors the plastic tip must be pushed in. I hope to find an adapter that fit the connector on top, then I don't need to do anything about the original wire system.

According to a drawing I found the speakers are connected to the B connector 18 pin, the upper one on the photo.

Chrysler Crossfire: Radio replacement

The outlet connector on the amplifier. The left is Connector A, 12 pin. The right is the connector B, 18 pin.

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