I had this installed on an MH34S. It worked without any problems until removal. It's the type that connects the red wire to the ACC power supply, and you could also reset the idling stop with a button operation. Please confirm compatibility yourself. I bought it on Yahoo Auctions, so I'll copy and paste the details. ↓ This is an essential and convenient part for those who find the idling stop function annoying. It automatically turns off the idling stop about 10 seconds after the engine starts. After installation, you no longer need to press the button every time to turn off the idling stop. [Eliminates the feeling of a slight delay when starting from a standstill] [Eliminates the discomfort of the air conditioner stopping due to idling stop] [Reduces the burden on the battery and starter motor caused by repeated stopping and starting] Installing this will eliminate various stresses and lead to a more comfortable drive. Of course, you can turn the idling stop function ON by pressing the button, so you may want to turn the idling stop function ON when necessary. The installation method is simply to insert it between the same-shaped couplers and connect the wiring. After installing this canceller behind the switch, you need to connect it to the ignition (IG) power supply. Insert the included low-profile fuse into the IG power supply location in the fuse box, and connect the wiring of the low-profile fuse to the wiring on the canceller side. *It is compatible with the vehicles listed in the product title, but the coupler shape may differ depending on the year. Please be sure to check the coupler shape before considering purchasing. This product uses the same materials as the original, [Sumitomo Wiring Systems] and [Yazaki Corporation], so you can install it securely.