Download Installation of the module: You will need following tools: – ratchet wrench 13mm – combination pliers – small, flat screwdriver – Torx TX20 screwdriver – Wire strip tool or knife – small, sharp-cut tool (e.g. toothpick). Open the top, turn off ignition and pull out the key before installtion. 1: remove rearseat: loosen 2 screws (arrow 1) and pull out rearset (arrow 2) 2: remove rearseat: loosen 2 screws (arrow 1) and pull out rearset (arrow 2) 3: top control unit with connectors A and B 4: plug out connector B: pull down latch (1), then turn strap to the top (2). Remove wires out of the original top control connector The following 6 wires must be plugged out of the connector. 5: this wires must be pulled out and plugged in the 6-pole black connector housing. Attention: pull out and plug in the wires one by one, that means at first pull out the wire on position 18 and plug it in position 1 of the black 6-pole connector housing. The colors of the wires inside the car are not relevant – they may differ from car to car. The pin-numbers at the connectors are the only important issue for proper installation. the housing of the connector must be removed before the wires can be pulled out. 6: remove the housing of the connector: pull up latch (1), and use a screwdriver to unlock cover. Pull out both connector parts (one blue, one white) 7: pull out wire: pull down latch (1), and pull out the wire a little then pull down latch again (2) and pull out wire completely.