Well, I've search the net all day, & could not find helpful info for my situation.
That's how I came across this forum. I have read some informative stuff.
Hope to have some great discussions in the future.
I have a 1997 528i (e39). DSP, no MID info.
I want to install an aftermarket radio, but would like to continue to use my factory amp & speakers at the moment.
I read a lot of post about this, but the answer always drifts away about upgrading the stock speakers & amp first.
I understand the pros & cons & down falls, etc.
I plan to upgrade the whole system in a couple of months. I just purchased my car & it's in the process of getting performance & cosmetic mods, which cost a pretty penny itself...
So....in the meantime, I would just like to enjoy an aftermarket H/U........instead of the big, old looking, stock one.
With the help of other forums & sites, I purchase a full install kit which consist of:
BMW-K500 STEREO TRIM
BWH-470 WIRING HARNESS
VW-6 ANTENNA ADAPTER
The H/U is an Alpine CDA-7897
Figuring the harness was just "plug n play," the install went fine. Unit powered up, great graphics, shut down when ignition was turned off, etc.........but the one major thing........no sound was present.
Am I wasting my time? Or does the stock amp have to be bypassed?
I've read a lot about this but with no straight answer.
Things I noticed during my install:
Factory radio harness has 10 wires, the BWH-470 WIRING HARNESS has 13.
There are only 5 wires that I can identify on the factory harness:
purple/white = 12v switched (red on the BWH-470 WIRING HARNESS)
red/green = battery (yellow on the BWH-470 WIRING HARNESS)
brown = ground (black on the BWH-470 WIRING HARNESS)
white = remote turn on (blue on the BWH-470 WIRING HARNESS)
gray/red = illumination (orange on the BWH-470 WIRING HARNESS)
The 5 wires left that have to be identified are:
black/white = ?
white/yellow = ?
white/brown = ?
blue/red = ?
yellow/red = ?
Does anyone know or can direct me in getting the wiring schematic for my vehicle?
Being that there are only 10 wires on the stock harness (5 of them having to do with powering the H/U), are there speaker leads running through the stock radio location?
Is there any use in the small 5 wire factory harness that connects to the mid unit?
Another thing I noticed was that some pins on the BWH-470 WIRING HARNESS do not match the factory harness when connected......well at least the remaining 8 wires, with the exception of the 5 noted above.
Some are pinned that they connect to an empty hole & vise versa........which gives me the thought that I would have to relocate pins on the BWH-470 WIRING HARNESS.
I am determined to do this, instead of paying some-one mega $$$$ & have my vehicle butchered.
Well, hopefully this story will have a happy ending & I can share my experiences.
Thank you in advance.
All replies are much appreciated!