I have searched extensivley and haven't found a definitive answer.

Can I use ANY BT receiver with Telenav or do I have to use one of the models they sell (BT-338, BT 339 or BT359)? I get the Telenav service free as a Sprint employee but haven't used it with a receiver since I haven't had the cash to get one. I see some on Ebay for as little as $60. The cheapest I've found any of the Telenav receivers is $99 plus shipping. Telenav Support says only their receivers work, but what else would they say?

I only get one shot at this and would appreciate any guidance and reports of success or failure using ANY other Receiver than those I listed.

Thanks in Advance,