As Bose said, Dave Jones does a FANTASTIC job. And you have new avionics fitted he hand builds the complete wiring looms at his house to save you miles of un-necessary wiring! A friend had a GNS430 fitted by him + a new wiring loom for the whole panel and this saved a helluva lot of weight! About 30 or 40 lbs IIRC. Well worth a visit and a lovely airfield too (in the summer!!)