Mazda 6 Service Manual: No.2 mil illuminates

No.1 melting of main or other fuses

No.3 will not crank

Other materials:

Mazda 6 Service Manual: Accessory Sockets
Only use genuine Mazda accessories or the equivalent requiring no greater than 120 W (DC 12 V, 10 A). Front The ignition must be switched to ACC or ON. Center The accessory sockets can be used regardless of whether the ignition is on or off. CAUTION To prevent accessory socket damag ...

Mazda 6 Service Manual: Operating Tips
Operate the climate control system with the engine running. To prevent the battery from being discharged, do not leave the fan control dial/switch on for a long period of time with the ignition switched ON when the engine is not running. Clear all obstructions such as leaves, snow and i ...