Antenna Adapter for aftermarket HU

[BluBYou]

Where do I find an antenna adapter to plug my alpine headunit into the boxster. Where would a buy such a thing?

[ukchris]

Originally Posted by BluBYou

Where do I find an antenna adapter to plug my alpine headunit into the boxster. Where would a buy such a thing?

I bought a set from Tweeter (retail), you can also get them at crutchfield.com but they are pretty expensive.