Try Crutchfield.com You can put in your Prius model, then it will recommend radios in your price range. Crutchfield's website and its phone support will help you find a radio that fits your car and pick out all the wiring etc that you need. Now, after I did that - I immediately went to Amazon.com and bought everything there. lol I probably saved myself about $100 in total because Amazon's pricing and shipping is lower. Must Have Items: SWI&PS -PAC (To retain your steering wheel controls) Scosche 010TA2103B (Hides leftover space. For radio w/ nav may need different type) SCOSCHE TA02B Wiring Harness (To properly connect radio) I just ordered a non-nav radio for 2007 and all the equipment above. Once everything arrives, i will post some pics.