Saturday, February 22, 2014

E46: speakers and obdii socket

Installed the tweeters today. Luckily the aftermarket tweeters fit into the oem tweeter housings. Transferred the oem connector and it was a bolt in place affair. Even with the factory amp the highs are better. Bass is weak. Expect the ohms differences on the speakers is not helping. Will fit an aftermarket amp to drive the aftermarket speakers.

Today we also added some additional pins to the obdii connector. This car has a 20 pin connector still which means txd (diagnostic bus) is not present at the obdii connector.  Only TXDII (for ISO OBDII protocol), power and 2 grounds were present at the connector.   So we rewired it and added not only txd but can bus and I bus. The connector is more useful now. And we no longer need the 20 pin connector.

Also reinstalled the door panels.  Will post before after pictures later.

OEM left.  Aftermarket in OEM housing right

OBDII Port.  Added 4 pins and wired up the Diagnostic bus, Can Bus and Ibus.  Now I have easy access to them.

Not Sure why but the OBDII pin part number eluded me for awhile.  It is listed on REALOEM  Not sure why I hadn't found it sooner.  So I bought a bunch from ECS tunning when I was ordering some other parts.

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