I havent seen what the elctric fuel door releases look like, but I would be very careful how you do it. Keep in mind that solenoids/relays/switches all produce sparks when they operate, which can be an issue around fuel vapours. I would assume the solenoids used for this purpose are fully sealed so make sure you use the genuine item. Dont use a boot release solenoid or anything similar. It will probably blow the door off. Just thought I should mention this.