I build a Cable that connects the Visorís Hotsync to a Garmin GPS. It places the Visor in serial receive-only mode and translates the NEMA protocol to the Visorís serial levels. The cable is 2 feet long, is powered by the Visor, and draws less than 300 micro-amps. I build two models; the square connector for Garminís eMap, eTrex, Summit, Camo, Legend, and the round connector for Garminís 12, 12XL, 12CX, 12MAP, 38, 40, 45, 45XL, 48, II, II+, III, III+, IIIPilot. It works with the Visor, Visor Deluxe, Platinum, Prism. Check, money order, or PayPal for $35 (US funds). Your cable will be sent by US mail. I also sell the Hotsync connector with strain relief for $8. Contact me for an image and mailing address. seapea@mail.com