OBD work ELM 327 (version 1.3a) interface built and tested ELM 327 Schematic – should apply to most BMWs OBD interfaces pictured together, on the left is the EDIABAS-INPA interface and ELM 327 on the right. Offset is USB to RS232 interface which is used with the laptop, the carputer has two native serial ports […]

Putting in the GPS receiver dongle Instrument cluster off GPS receiver behind instrument cluster Reverse camera Fishing the power and composite wire through here is royal PITA LED bulb replaced with camera Wiring Wire being laid down Relay for reverse and override operation Schematic [IMG]http://aidilj.hopto.org/carputer/override.png[/IMG] Override switch The camera In action