If your 07 comes with an AUX input I would buy the cord for that. If you just use the modulator alone the reception will have a lot of static. If you bought the box that that hooks into your radio antenna you have to remove the radio to install it. Hooking into the radio antenna will give you good sound but you may still get some static. The AUX input will give the best sound.Thanks macho99...its a lot easier than I thought. Everything is set up except for the sirius fm modulator. Where should I place this?