I have the Motorola T605, which I got on amazon for about $40:
Amazon.com: Motorola T605 Bluetooth Music Car Kit: Cell Phones & Accessories
You'll also need a wire from Becker that plugs into the phone port on the back of the radio, which you would then wire up to the T605.
Do you need OEM radio parts??
You'll also need the radio removal keys to get the radio out, which you can get on eBay or straight from Becker.
Let me know if you have any questions - I'm happy to help.