Can I change my HU with a HK setup

[MistaSmiff]

Need a quick answer on this chaps.

Basically I want to change the HU, keep all the components the same but add an amp+sub. AFAIK I just need to buy an bmw to iso plug and bmw fascia adapter. I know HK setups are different so am not 100% sure.

Is it that easy?

[Icecold]

autoleads do a bmw hk active adp which you will need along side the facia. then put what ever you want in there.