For sale is a P2V+ v3.0 GPS module with a Taoglas 4mm ceramic antenna instead of the stock 2mm. The 4mm gets more satellites, and faster. I can get as many as 10 satellites sitting in my kitchen. Outdoors I'm getting 9-12 in the field where I fly, compared to 7 to 9 before the mod. Everything is tested and works just fine. $80 includes Priority Mail shipping.