997 Nav in 996
- Thread starter jonc4s
- Start date
I imagine not too much of a problem on a MOST equipped later 996.
berty987
New member
Pic is of a PCM 2.0 a MOST based PCM for the 986 not the PCM 2.1 found in the 987. Main issue will be if the 996/986 can system recognises the PCM 2.1 device. If it doesnt then you wont be able to code the unit correctly for a boxster in terms of speakers , BOSE , or radio frequencies (if the unit is sourced from USA). Considering the cost of the map and lack of functionality Id rather fit a Kenwood or Pioneer unit
Well you did ask
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MOST bus: [Media Oriented Systems Transport],defines a multimedia fiber-optic (low overhead, low cost) point-to-point network implemented in a ring, star or daisy-chain topology over Plastic optical fibers [POF].
]MOST bus: [Media Oriented Systems Transport],defines a multimedia fiber-optic (low overhead, low cost) point-to-point network implemented in a ring, star or daisy-chain topology over Plastic optical fibers [POF].
Actually incorrect, the PCM can be reconfigured in terms of car type, speaker setup (however there is a different head unit for BOSE), the radio frequency spacing USA/ROW etc can also be altered; true this cannot be done without the use of a dealer PIWIS but it can be done .... I am speaking from experience here, having imported both our cars from US to UK.
Nick, I understand what you are saying about changing the coding of PCM2.0 and 2.1 units. I think what Berty is getting at is that if the connections are different on the two units, and if you put a PCM2.1 unit in a PCM2.0-equipped car, the PIWIS might not have the correct connections to access the PCM2.1 unit. I also think the Bose amplifier is different for 2.0 and 2.1, so that would be an additional change required.
Also, the diagnostic program on PIWIS is different for the 996 and 997. The 996 program may not be able to access PCM2.1, or certainly wouldn't have the same coding functions. The 997 program may not be able to access a 996 at all.
I'm sure it is technically possible, but I think it might be a huge amount of hassle.
Also, the diagnostic program on PIWIS is different for the 996 and 997. The 996 program may not be able to access PCM2.1, or certainly wouldn't have the same coding functions. The 997 program may not be able to access a 996 at all.
I'm sure it is technically possible, but I think it might be a huge amount of hassle.
I didn't say it was easy [
] but it is possible. To code a 997 PCM in a 996 you essentially use the PIWIS as if it were connected to a 997. The other non-PCM units report errors but you access the PCM here. So post the changes and using the PIWIS in 996 mode it reports the PCM with a '?' as it is an unknown ECU.
The same method is employed for a 996 cluster into a 986. Code the cluster in 996 mode test the car in 986 mode but the cluster reports '?' unknown.
Sorry guys to digress [
]The the other point, for a BOSE car the 997 amp would technically be required. However, the amp outputs may differ. So 997 PCM 2.1 (Non-BOSE) into a non-BOSE 996 (2003+ MOST car) should be simple. 997 PCM2.1 (BOSE) into a 996 may be feasible but the amp outputs to speakers would need to be checked first and the 997 BOSE amp would be required.
I see what you mean. There would be quite a lot of re-wiring though, trying to match up the connections, as it looks like the plugs and sockets are quite different.
I think we both agree that it is possible, but whether or not it is worth the hassle is another thing.
I think we both agree that it is possible, but whether or not it is worth the hassle is another thing.
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