Brey Krause R-9247 Passenger Seat Bottom Mount Adapter - BMW E46/E85/E86 Category_Helmet Supports The 4-pin 712-style connector is

The 4-pin 712-style connector is also popular on many other analog AIM sensors

Made of Type 304

with the included OBDII connecter

and R-9003/9006 Racing Lap-Belt mounts

up to 99 laps per driver

Brey Krause R-9247 Passenger Seat Bottom Mount Adapter - BMW E46/E85/E86 Category_Helmet Supports The 4-pin 712-style connector isThe Brey Krause R 9247 Seat Mount is an innovative solution that attaches bottom mounting Sparco, Cobra or Recaro seats to the OE factory, power slider mechanisms on BMW E46 (including M Series), and E85 E86 (Z4 Roadster Coupe) cars. The mount maintains the factory power adjustment for both the seat height and front back settings (requires BMW E30 window switches not included, but easily sourced).