Author Topic: Trying to fit a Pioneer head unit - do I need an adaptor?  (Read 2159 times)

Offline Wurzel

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I'm trying to fit a Pioneer DEH-P77MP in place of a Pioneer DEH-P8400MP bit it appears they have slightly different connections, I dont really understand why.
1999 mk4 1.8 n/a AGN Silver Grey
***Looking for one 16 inch wheel, Montreal 2*** and a rear parcel shelf (without speaker holes!)

Offline Wurzel

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Re: Trying to fit a Pioneer head unit - do I need an adaptor?
« Reply #1 on: 30 August 2009, 12:35 »
Car plug:


Old Pioneer socket:


DEH-77MP socket that I want to fit:
« Last Edit: 30 August 2009, 12:37 by Wurzel »
1999 mk4 1.8 n/a AGN Silver Grey
***Looking for one 16 inch wheel, Montreal 2*** and a rear parcel shelf (without speaker holes!)

Offline Madmax

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Re: Trying to fit a Pioneer head unit - do I need an adaptor?
« Reply #2 on: 30 August 2009, 13:06 »
Hi, i think you need an ISO adapter. Sorry i couldn't be of more help. :drool:

Offline troublestarter

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Re: Trying to fit a Pioneer head unit - do I need an adaptor?
« Reply #3 on: 31 August 2009, 01:21 »
that first picture is not the cars plug that is a loom from i take it your old pioneer unit
the 77mp needs a different loom it looks like you need autoleads part number PC3-426 this is an aftermarket replacement designed specifically for your 77mp
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jamie16v

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Re: Trying to fit a Pioneer head unit - do I need an adaptor?
« Reply #4 on: 01 September 2009, 10:38 »
try pulling the wires further out of the hole, there should be another two sockets, these are your iso sockets (if they are still there). you need to start with them and the loom supplied with your new head unit (if there was one).