Inexpensive monthly parking near the airport or 7th district?

Does anyone know of a "cheap" parking space ?
We have an older car and need parking space for 4 months time.
Nothing fancy is needed, just safe secure place.
Thnaks

I have checked the airport parking scene in Vecses and it seems that their going rate is lower than parking spaces downtown. At least for example this operator has an outdoor parking rate of HUF 14500 per month.
I'd send them (and a few more in Vecses) a quick email asking for their best rate for the 4 months period.
Good luck,

Dez