Where's the switch to turn the foglights on santa fee 2007

sounds like it may be the flasher relay location as indicated in below.

https://www.google.co.uk/search?q=2007+Hyundai+Santa+Fe+indicator+relay+position&rlz=1C1ASUM_enGB638GB638&tbm=isch&imgil=brHkRdpGAOlRWM%253A%253BVM-Azms89RJLLM%253Bhttp%25253A%25252F%25252Fwww.justanswer.com%25252Fcar%25252F26vlf-2007-hyundai-santa-fe-where-turn-signal-flasher-relay.html&source=iu&pf=m&fir=brHkRdpGAOlRWM%253A%252CVM-Azms89RJLLM%252C_&usg=__6s-LvGJmdahb4w6Bj4_Jm2dEnqQ%3D&biw=1344&bih=684&ved=0ahUKEwjMqte30erTAhWMIcAKHcWRD5EQyjcIOQ&ei=H9AVWYyfI4zDgAbFo76ICQ#imgdii=jXmYJfKIUou0XM:&imgrc=brHkRdpGAOlRWM:

Fee alternator did not have a diagram, sorry about that.

Can't guess much at any vehicle problems

Needs to be diagnosed at a repair shop

you can get help from the service and repair manual this will guide you step by step with diagram to solve your problem to get the manual go to the given link http://toolsnyou.com/

The headlight low beams must be on for the fiog lights to operate.

First of all, did the vehicle previously come with fog lamps? I'm assuming it didn't. Normally, each YM (Year/Model) Hyundai wiring harness is complete for every feature which might be included with certain trim specifications. However, you probably don't have the multi-function switch which has the 'Fog Lamp Switch' on it (Left Hand Turn & Parking/Headlamp Switches). However, the wiring for the fog lamps is probably there, you just need the multifunction switch which contains the fog lamp switch. The illustration attached shows where the wire harness plugs into the fog lamp bulb. This connector may be taped up in the wire harness out of the way (since I'm assuming the vehicle didn't originally come equipped with fog lamps).

Check for a good/clean connection on your battery terminals.Make sure it's on good & tight, then try to start the car - if that's not it. Get a jump, then go to Auto Zone, O'Reilley's, etc and get the battery & the starter checked. I'm betting it's either a poor connection, bad battery or your starter is going out (or possibly the starter relay switch) Start with your connections - that's the easy fix.

The headlamp knob doubles as the foglight switch. You just push it in. Its the middle knob in this picture if it posts right. Hope this helps.

Try another place. Independant garage. Conveters don't make the engine race

if you wired them into the factory harness, then you will have to add a factory switch. however you can wire an aftermarket switch directly to the foglights, bypassing any factory harness