Great Product Works As Described
Crutchfield Customer Review (What's this?)
I've had an iSimple TranzIt IS77 installed since December 2011 with the iSimple 30-Pin Connector broadcasting over FM Modulators. I've been wanting to improve the heavily compressed sound from the iPod playback on my iPhone 4S and had been looking for solutions. This is step 1 of it. Swapped out the iSimple 30-Pin for the Metra 30-Pin USB and the sound quality for both the iPod and Streaming has improved immensely - I'd say at least by 15%. The Signal-to-Noise Ration (SNR) and Frequency Response (FR) are vastly better over the Line-Out connection. Step 2 will be to finally install the Sony XDP-MU110 (w/o the Cradle and Wireless Remote) to get even greater improvement of the systems overall sound quality. Note, if you have an old USB Car Charger you may need to upgrade it to at least a 2.1 amp model to charge from your vehicle's lighter socket -- I did.
Pros: Excellent quality and great SNR and FR on iPod playback and Streaming