I'm thinking of getting a dashcam (mobius) and hardwiring it but was wondering:
1. How safe are piggy-back fuses? Fitted one way round it makes it possible to draw more current through the car wiring than originally intended (up to the sum of the two fuses), while fitted the other way round although the total current can't increase as both circuits first go through the original fuse it reduces whats available to the main circuit by whatever the other one takes. Neither sound ideal!
2. What are the warranty and insurance implications? I can't see DIY modifications to the fusebox going down well with ford or the insurance company!