What do I need? 2007 A4 Nav/Bose HU replacement

[AU11 ALS]

I've just bought a 2007 A4 Cab that has Nav (on a small screen) and Bose.. I want to fit the Pioneer unit I had in my A3

http://www.caraudiocentre.co.uk/product_m-pioneer-sph-da120_p-32433.htm

Can anyone advise what adapters I needs to to get it to work fully as I never managed to get the rear speakers working on the A3

TIA


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[AU11 ALS]

Can anyone recommend the best place to buy adapter cables etc, I want to fit the HU over the weekend

 

[docurley]

Bit late but for a quick purchase then Halfords would be the best shot but you will need a PAC hi/Lo adapter to lower the signal down to a Bose level as normal units from their RCA outputs are too high.