Advertisement / Annons:
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.
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.
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 ?
A thick plastic shield protect the booster and other electronic stuff that is mounted here.
Three nuts hold the metal plate in place. They have the size of 10 mm.
The left nut at the floor.
The right nut at the floor. I'm happy to see that there is no rust on the floor.
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.
The shiny metal box is the booster, behind is something connected to the airbag system, don't touch it !
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.
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.
The outlet connector on the amplifier. The left is Connector A, 12 pin. The right is the connector B, 18 pin.