XM receiver for pre wired head unit

i and others have done the install. it's not that hard. i chose sirius (doesn't matter anymore). i bought the radio module and interface mod as a package through tss radio. i also got the sharkfin antenna adapter from the same site. if you go to their site and search on lexus both items i mentioned will come up. price came to ~370. you need to pull back some of the carpet in the trunk to connect the antenna. then run that up to the front of the car. i ran it to under the passenger seat which is also where the radio and int mods sit. those two mods connect together and then connect up to the back of the headunit. that's the hardest part. to remove the headunit you need to pull some trim pieces and the vents above the headunit. take your time and use some nylon pry tools or tape covered screw drivers. i did it all in a few hours and had never done anything in a lexus before. someone created a diy post with pics either on this site or club lexus. do a search.

my dealer also wanted a lot of money and that's after they swore i couldn't get sat radio at all and i had to prove them wrong. i have owned a lot of vehicles in the past few years and have found most dealers don't know their ass from a hole in the ground. and i don't let anyone touch my vehicles unless it's the only choice.