Install the SIRIUS FM Direct Audio Relay?

[SRM]

Anyone install the SIRIUS FM Direct Audio Relay on a 07 WRX TR? The TR has the low-end 80 watt single CD radio. Just wondering if you need to purchase any other additional adapters.

[SRM]

Anyone? How about any Subaru radio? I'm probably going to be doing this on my wife's car as well.

[wherethefmi]

do you have a plug and play sirius reciever? if so then you will appreciate having the relay, though if you live in a rather rural area that doesn't have a ton of radio stations you wont notice the difference, especially with the crappy speakers and head unit. install is pretty easy just take your time and try to tuck all the wires away. btw I have sirius but I have the sat ready head unit.