Immobilisers/trackers

Hi, can I ask advice on what type of theft equipment can be fitted to my series 3? It has a steering lock which is poor and also the engine stop is cable into it. I really don't want a padlock on the bonnet if I can help it, TIA

Hungry rottweiler

Battery kill switches can be good at stopping someone driving away as you can remove the 'key'
Stopping someone towing or trailering it away is harder

Mine came with a batt switch and bonnet padlock so I didn't have to decide. Its got a pull stop (Perkins diesel) so I also have a clip on that and a steering lock. I have a £10 tracker which works great, it runs on a 3g PAYG sim and I text it and it texts back the location in google maps for 20p a go, its accurate to about 2m. It has to be mounted with no metal above it, not easy but doable. Only problem is it draws 0.05A which doens't sound much but it will pull the batt down in a week. I now have a fixed solar panel on the roof so batt is always 100%.

I know it's a bit off topic, but whose SIM do you use? The credit seems to expire on most every month, so aren't really cost-effective for something like this that will get very little use. I bought a tracker from China a while ago, but haven't actually found a suitable SIM to use with it yet.

I think if you make a call or text at least once a month it stays active.

It's sensible question, I looked for a while and settled on giffgaff. They cost more per call but have less restrictions. but just texted it to be sure! Its very accurate - I'm parked on the drive and it shows that. I'm working on £5-£10 per year and hoping to recoup that on insurence discount for having the tracker.

I have a feeling they've all changed recently, as they all seem to advertise that 'all our packs/goodybags/whatever-they-call-them last for 30 days'. Vodafone offer an 'only pay £1 on the days you use your phone', which should work out pretty cheap if you never use it, but even a monthly test is going to work out at £12 a year.
I've been casually looking for some time now, for a 'Stick a tenner on it, and it'll last forever until you use it up' deal, even if it's actually something like 50p per text, but still not found one.

SEarch e-bay for giffgaff and you only need a 2g or 3g. 20p for the sim and a min £10 top up should last a year.